[INFO] updating cached repository https://github.com/syml/rust-webserver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ba8ca64ad6a54e69550773f991219d1803bb683
[INFO] checking syml/rust-webserver against master#4fb54ed484e2239a3e9eff3be17df00d2a162be3 for pr-73345
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsyml%2Frust-webserver" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/syml/rust-webserver on toolchain 4fb54ed484e2239a3e9eff3be17df00d2a162be3
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/syml/rust-webserver
[INFO] finished tweaking git repo https://github.com/syml/rust-webserver
[INFO] tweaked toml for git repo https://github.com/syml/rust-webserver written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/syml/rust-webserver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69fa0f3d416b962fa0ac58a78d7a29d5b4ec10e99364a4760b73112fb4fbefa1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "69fa0f3d416b962fa0ac58a78d7a29d5b4ec10e99364a4760b73112fb4fbefa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69fa0f3d416b962fa0ac58a78d7a29d5b4ec10e99364a4760b73112fb4fbefa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69fa0f3d416b962fa0ac58a78d7a29d5b4ec10e99364a4760b73112fb4fbefa1", kill_on_drop: false }`
[INFO] [stdout] 69fa0f3d416b962fa0ac58a78d7a29d5b4ec10e99364a4760b73112fb4fbefa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:6c9ffe128752d56c8d75334ed354142a5229917ed99767f56566dd8e857ad726" "/opt/rustwide/cargo-home/bin/cargo" "+4fb54ed484e2239a3e9eff3be17df00d2a162be3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ff77e552d4a429e78abf92bf4bad3bbc469e819dd21711fb586adadc0cc1bf57
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ff77e552d4a429e78abf92bf4bad3bbc469e819dd21711fb586adadc0cc1bf57", kill_on_drop: false }`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking lazycell v0.4.0
[INFO] [stderr]    Compiling nix v0.6.0
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking regex v0.1.77
[INFO] [stderr]     Checking mio v0.6.0
[INFO] [stderr]     Checking webserver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:13:32
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn duplicate(&self) -> Box<EventHandler>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:13:32
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn duplicate(&self) -> Box<EventHandler>;
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |     event_handler: Box<EventHandler>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:29:67
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(host: &str, num_workers: usize, event_handler: Box<EventHandler>) -> EventLoop {
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:37:70
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn process_events(channel: Receiver<Msg>, mut event_handler: Box<EventHandler>) {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/app_server.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn duplicate(&self) -> Box<App>;
[INFO] [stdout]   |                                ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     app: Box<App>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new(app: Box<App>, stream: TcpStream) -> AppWithStream {
[INFO] [stdout]    |                     ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:36:14
[INFO] [stdout]    |
[INFO] [stdout] 36 |     app: Box<App>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn new(app: Box<App>) -> AppEventHandler {
[INFO] [stdout]    |                     ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn duplicate(&self) -> Box<EventHandler> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:96:14
[INFO] [stdout]    |
[INFO] [stdout] 96 |     app: Box<App>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:99:57
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn new(host: &str, num_workers: usize, app: Box<App>) -> AppServer {
[INFO] [stdout]    |                                                         ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handlers.rs:21:32
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn duplicate(&self) -> Box<Handler> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handlers.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn duplicate(&self) -> Box<Handler> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/handler_lib.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn duplicate(&self) -> Box<Handler>;
[INFO] [stdout]   |                                ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler_lib.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct HandlerRule(Regex, Box<Handler>);
[INFO] [stdout]    |                               ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler_lib.rs:13:45
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct HandlerRoute(pub String, pub Box<Handler>);
[INFO] [stdout]    |                                             ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler_lib.rs:46:32
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn duplicate(&self) -> Box<App> {
[INFO] [stdout]    |                                ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:25:24
[INFO] [stdout]    |
[INFO] [stdout] 25 |     event_handler: Box<EventHandler>,
[INFO] [stdout]    |                        ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:29:67
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn new(host: &str, num_workers: usize, event_handler: Box<EventHandler>) -> EventLoop {
[INFO] [stdout]    |                                                                   ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/event_loop.rs:37:70
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn process_events(channel: Receiver<Msg>, mut event_handler: Box<EventHandler>) {
[INFO] [stdout]    |                                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/app_server.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn duplicate(&self) -> Box<App>;
[INFO] [stdout]   |                                ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 |     app: Box<App>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn new(app: Box<App>, stream: TcpStream) -> AppWithStream {
[INFO] [stdout]    |                     ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:36:14
[INFO] [stdout]    |
[INFO] [stdout] 36 |     app: Box<App>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:40:21
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn new(app: Box<App>) -> AppEventHandler {
[INFO] [stdout]    |                     ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:88:32
[INFO] [stdout]    |
[INFO] [stdout] 88 |     fn duplicate(&self) -> Box<EventHandler> {
[INFO] [stdout]    |                                ^^^^^^^^^^^^ help: use `dyn`: `dyn EventHandler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:96:14
[INFO] [stdout]    |
[INFO] [stdout] 96 |     app: Box<App>,
[INFO] [stdout]    |              ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/app_server.rs:99:57
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn new(host: &str, num_workers: usize, app: Box<App>) -> AppServer {
[INFO] [stdout]    |                                                         ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handlers.rs:21:32
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn duplicate(&self) -> Box<Handler> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handlers.rs:42:32
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn duplicate(&self) -> Box<Handler> {
[INFO] [stdout]    |                                ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/handler_lib.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn duplicate(&self) -> Box<Handler>;
[INFO] [stdout]   |                                ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler_lib.rs:12:31
[INFO] [stdout]    |
[INFO] [stdout] 12 | struct HandlerRule(Regex, Box<Handler>);
[INFO] [stdout]    |                               ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler_lib.rs:13:45
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct HandlerRoute(pub String, pub Box<Handler>);
[INFO] [stdout]    |                                             ^^^^^^^ help: use `dyn`: `dyn Handler`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/handler_lib.rs:46:32
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn duplicate(&self) -> Box<App> {
[INFO] [stdout]    |                                ^^^ help: use `dyn`: `dyn App`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.20s
[INFO] running `Command { std: "docker" "inspect" "ff77e552d4a429e78abf92bf4bad3bbc469e819dd21711fb586adadc0cc1bf57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff77e552d4a429e78abf92bf4bad3bbc469e819dd21711fb586adadc0cc1bf57", kill_on_drop: false }`
[INFO] [stdout] ff77e552d4a429e78abf92bf4bad3bbc469e819dd21711fb586adadc0cc1bf57